1. Soils and Plant Nutrition Department
  2. Results from the Woburn Reference Experiment, III. Yields of the Crops and Recoveries of N, P, K, and Mg from Manures and Soil, 1975-79
  3. Report on Multidisciplinary Activities
  4. Variations in Cereal Yield Losses associated with Heterodera avenae in England and Wales
  5. Plant growth response to vesicular-arbuscular mycorrhiza. XIII. Spread of an introduced VA endophyte in the field and residual growth effects of inoculation in the second tear
  6. Factors affecting resistance to root rot and wilt diseases
  7. Physiological behaviour of the cereal crop
  8. The regeneration of plants from protoplasts of agriculturally important species [Triticum aestivum, wheat, Hordeum vulgare, barley, Solanum tuberosum potatoes, Brassica napus, rape]
  9. Mycorrhizae The present situation / position
  10. Aphid monitoring and forecasting as an aid to decision-making
  11. Use of similar media theory in infiltration and runoff relationships
  12. Maximising wheat yields, and some causes of yield variation
  13. Balance and designs - Another terminological tangle
  14. La biometrie Pas rites mais science
  15. Some partly cyclic 13× 4 Youden 'squares' and a balanced arrangement for a pack of cards
  16. The design and analysis of experiments - what has gone wrong?
  17. The role of parasitoids in limiting cereal aphid populations
  18. Diagnostic keys to identify individual and groups of taxa
  19. The effect of brief exposures to potato root diffusate on the hatching of Globodera rostochiensis
  20. The behaviour of moths responding to pheromone sources in the field: a basis for discussion
  21. Metabolism of pesticides in plants - some applications of nuclear techniques
  22. Markov-chain simulation of particle dispersion in inhomogeneous flows: the mean drift velocity induced by a gradient in Eulerian velocity variance
  23. Numbers of root-ectoparasitic nematodes under some forage crops
  24. The distribution of carbon and the demand of the fungal symbiont in leek plants with vesicular‐arbuscular mycorrhizas
  25. The relationship between phosphorus concentration and growth in plants infected with vesicular-arbuscular mycorrhizal fungi
  26. RA Fisher An Appreciation
  27. Effect on some field-measured soil physical properties of restructuring a soil mechanically
  28. Degradation y Comportamiento de C-Carbaril en dos Suelos Brasilenos
  29. A fully automated micro-injection system for the LKB batch microcalorimeter
  30. Comments on 'the influence of water vapor fluctuations on turbulent fluxes by Brook
  31. Progress in use of biological agents for control of nematodes
  32. Transfer of Symbiotic Genes in Rhizobium
  33. Potato plants used as traps to determine when winged aphids which can carry yellowing viruses invaded some European sugar-beet crops, 1975-1977
  34. Practical aspects of vesicular arbuscular mycorrhiza
  35. Nitrogen and stocking rates for grazing beef cattle - effects of grassland fertilization on liveweight
  36. Disease gradients of windborne plant pathogens: interpretation and misinterpretation
  37. Methyl 4,6-bis(O-p-chlorobenzoyl)-2,3-dideoxy-3-C-(methoxycarbonylmethyl)-alpha-D-ribo-hexopyranoside
  38. Molecular cloning of Rhizobium trifolii genes involved in symbiotic nitrogen fixation
  39. Some problems posed by the Heterodera avenae complex
  40. Soils and land use on the Yorkshire Wolds [England]
  41. Identification of poisoning by triazophos in honeybees
  42. Effects of infestation with Globodera rostochiensis (Wollenweber) Behrens Rol on the growth of four potato cultivars
  43. Effects of host variety, photoperiod and chemical treatments on hatching of Globodera rostochiensis
  44. Possible use of chemicals for the control of photorespiraton
  45. The extent of insidious pest damage in the United Kingdom grassland and possibilities for control
  46. Plant growth responses to vesticular-arbuscular mycorrhiza (VAM XIIISpread of an introduced VA endophyte in the field and residual growth effects of inoculation in the second year
  47. Spermatogenesis and sperm structure in some Meloidogyne species (Heteroderoidea, Meloidogynidae) and a cornparison with those in some cyst nematodes (Heteroderoidea, Heteroderidae)
  48. Estimating sugar production from pre-harvest samples
  49. Diffusion of coefficients of carbon dioxide, nitrous oxide, ethylene and ethane in air and their measurement
  50. The quaternary deposits of the Yorkshire Wolds
  51. Loess in Cornwall
  52. Latent messenger RNA in tobacco (Nicotiana tabacum)
  53. Natural control of the cereal cyst nematode, Heterodera avenae Woll., by soil fungi at three sites
  54. Faba beans in cropping and cropping/livestock systems in the UK
  55. The response of ryegrass to nitrogen on chalkland in the south of England
  56. Statistical Programs for Microcomputers: The Implementation of a Directory for Data Structures
  57. Changes in membrane phospholipids, identified by Arrhenius plots of acetylcholinesterase and associated with pyrethroid resistance (kdr) in houseflies (Musca domestica)
  58. Magnesium uptake in grass-results of a long term experiment
  59. The effect on some field-measured soil physical properties of restructuring a soil mechanically
  60. Degradacion y comportamiento de 14C-Carbaril en dos suelos brasilenos
  61. The rice root-knot nematode, Meloidogyne graminicola, on deep water rice (Oryza sativa subsp. indica)
  62. REML — a program for the analysis of non-orthogonal data by restricted maximum likelihood
  63. Regulation of RuBP carboxylase activity associated with photo-inhibition of wheat
  64. Euclidean Distance Geometry
  65. Composition and origin of some brickearths on the Chiltern Hills, England
  66. Regional variation of extractable copper and cobalt in the topsoil of south-east Scotland
  67. Linear models and non-orthogonal data
  68. Regression Models for Repeated Measurements
  69. Obituary : William Gemmell Cochran, 1909-1980
  70. (z)-11-eicosen-1-ol, an important new pheromonal component from the sting of the honey bee, apis-mellifera-l (hymenoptera, apidae)
  71. Water-use, calcium-uptake and tolerance of cyst-nematode attack in potatoes
  72. Volatile hydrocarbons in the Dufour's gland of the parasite Nemeritis canescens (Grav.) (Hymenoptera; ichneumonidae)
  73. Viruses of honeybees
  74. Viruses detected in ullucus-tuberosus (basellaceae) from peru and bolivia
  75. Vertical band granule applicator
  76. Variation of host response to nematodes due to interaction between nematodes, with fungi and with environment
  77. Variation amongst protoplast-derived potato plants (solanum-tuberosum cv maris bard)
  78. Use of unpurified nasonov pheromone components to attract clustering honeybees
  79. Use of triple-labeled nutrient solution to study the effects of root-infecting fungi on uptake of potassium, calcium and phosphorus by wheat
  80. Use of nitrification inhibitors to improve recovery of mineralized nitrogen by winter-wheat
  81. The uptake and translocation of tri-valent and hexa-valent chromium and effects on the growth of oat in flowing nutrient solution and in soil
  82. Uniformity of distribution and prevention of loss of potatoes in store by tecnazene
  83. Ullucus virus-c, a newly recognized comovirus infecting ullucus-tuberosus (basellaceae)
  84. The translocation of 3,5-dichlorophenoxyacetic acid in relation to its effect on potato common scab
  85. Transfer of pheromone from immature queen honeybees, apis-mellifera
  86. Towards more efficient soil-water modeling - moisture profiles for constant application or removal of water at the surface
  87. Time and method of nitrogen application - a review of recent trials
  88. A thermal history
  89. Terminal velocity of fall of didymella-exitialis ascospores in air
  90. Taxonomic studies on Streptococcus pluton
  91. T is for trouble (and textbooks) - a critique of some examples of the paired-samples t-test
  92. Synthetic ionophores and stomatal response
  93. The survival of ditylenchus-dipsaci in the absence of host crops
  94. Surveys of beet cyst nematode in England 1977-80
  95. Studying and recording the feeding-behavior of thrips
  96. Studies of the cereal cyst-nematode, heterodera-avenae under continuous cereals, 1975-1978 .2. Fungal parasitism of nematode females and eggs
  97. Studies of the cereal cyst-nematode, heterodera-avenae under continuous cereals, 1974-1978 .1. Plant-growth and nematode multiplication
  98. Structures of two isomeric macrobicyclic polyethers, C28H42O8, and the potassium perchlorate complex of one
  99. The structures of the isomer C of the macrobicyclic polyether (21S,26R,29S,34R)-21,22,23,24,25,26,29,30,31,32,33,34-dodecahydro-1,4,7,14,17,20,28,35-octaoxa[23,29-anti.218,34anti][7.7]orthocyclophane at 295 K and of its methanol complex at 295 and 123 K
  100. The structure of the egg-shell of gLobodera rostochiensis (Nematoda: Tylenchida)
  101. The structure of normal and high-lysine barley grains
  102. A strain of Sacbrood virus from Apis cerana
  103. Statistical aspects of travel demand modeling
  104. The stability of beta-carotene in preserved, moist leaf protein
  105. The spread of Erwinia carotovora subsp. atroseptica and subsp. carotovora from stem lesions and degenerating seed tubers to progeny tubers in soil
  106. Source of phosphate taken up from two soils by mycorrhizal (Thelephora terrestris) and non-mycorrhizal Picea sitchensis seedlings
  107. Some results of an experiment in which potatoes were grown continuously for 11 years
  108. Some effects of manuring and cropping on the organic phosphorus-content of soils
  109. Some biological aspects of different geographic isolates of the rice root-knot nematode, meloidogyne-graminicola
  110. Solanum berthaultii P.I. 265858; a possible source of protection against all strains of PVX
  111. Setting up and managing an experimental farm for crop studies - the 1st 20 years experience at Brooms Barn
  112. SEM studies of Pratylenchus spp.
  113. Selection of potato cyst-nematodes virulent against resistance from solanum-vernei
  114. Screening of pesticides for use on established grassland to improve herbage yield
  115. Revisionary notes on the genus Metopolophium Mordvilko, 1914, with keys to European species and descriptions of two new taxa (Homoptera: Aphidoidea)
  116. Retention of actinomycete spores by respirator filters
  117. Results from factorial experiments testing amounts and times of granular N-fertilizer, late sprays of liquid N-fertilizer and fungicides to control mildew and brown rust on two varieties of spring barley at Saxmundham, Suffolk 1975–8
  118. Results from an experiment on permanent grass evaluating the cumulative effects of aqueous urea, injected alone or with a nitrification inhibitor, with those of nitro-chalk
  119. Response of the ichneumonid parasite nemeritis-canescens to kairomones from the flour moth, ephestia-kuehniella
  120. Response by sugar-beet to various amounts and times of application of sodium-chloride fertilizer in relation to soil type
  121. Residuals of equal magnitude in fractional replicate 2n designs
  122. Residual effects of triadimefon in soil on powdery mildew and yield of spring barley
  123. Relationships between the rna components of chronic bee-paralysis virus and those of chronic bee-paralysis virus associate
  124. Reduced fecundity of females of spodoptera-littoralis emerging from pupae exposed to 16-degrees a temperature within the range for complete development
  125. A record beet year - and its weather
  126. Reclassification of ‘Streptococcus pluton’ (White) in a new genus Melissococcus, as Melissococcus pluton nom. rev.; comb. nov.
  127. A reappraisal of insect flight towards a distant point-source of wind-borne odor
  128. Realistic approaches to third-world food supplies
  129. Reader reaction - regression-models for repeated measurements
  130. The reactions between active and inactive forms of wheat ribulosebisphosphate carboxylase and effectors
  131. The purification and characterization of homologous high molecular-weight storage proteins from grain of wheat, rye and barley
  132. The purification and characterization of 2 groups of storage proteins (secalins) from rye (secale-cereale l)
  133. Protein disulfide-isomerase is located in the endoplasmic-reticulum of developing wheat endosperm
  134. Protein bodies from developing seeds of barley, maize, wheat and peas - the effects of protease treatment
  135. Proline content does not influence pest and disease susceptibility of barley
  136. Preparation and quality of edible leaf protein
  137. Preparation and crystal structure of [{W(N2)2(PEt2Ph)3}2(µ-N2)]
  138. Plant-growth responses to vesicular-arbuscular mycorrhiza .13. Spread of an introduced va endophyte in the field and residual growth effects of inoculation in the 2nd year
  139. Photosynthesis, respiration and evaporation of a field-grown potato crop
  140. Phenology of aphidophagous predators
  141. Pesticides and ecosystems
  142. The origin of 6-rowed wild barley from the western himalaya
  143. The occurrence of bacterium-like organelles in vesicular-arbuscular mycorrhizal fungi
  144. Observations on the biology and ecology of apion-vorax (coleoptera, apionidae), a vector of broad bean stain and broad bean true mosaic-viruses
  145. Observations on fixing, processing and mounting of nematodes
  146. Numbers of root-ectoparasitic nematodes under some forage crops
  147. A note on some factors affecting the survival of rhizobium cultures during freeze-drying and subsequent storage
  148. A note on migration rates
  149. Nitrogenous fertilizers and earthworm populations in agricultural soils
  150. The nitrogen cycle in long-term field experiments
  151. New approaches to nematode control with non-fumigant nematicides
  152. Nematode involvement with root nodulation of peas
  153. Nasonov pheromone of the honeybee - apis-mellifera-l (hymenoptera, apidae) .4. Comparative electroantennogram responses
  154. Movement of fluometuron and CI-36- in soil under field conditions - computer-simulations
  155. Monitoring surveys of beet cyst-nematode in England
  156. Models for the analysis of inter-regional migration
  157. A model to simulate the spread of cyst-nematodes within fields
  158. Mildew powdery or downy
  159. Methods of testing fungicides for controlling skin spot (polyscytalum-pustulans) on potatoes during storage
  160. A method for improving cheaply the time response of pressure transducer tensiometer systems
  161. Mechanized methods of bolter control
  162. The measurement of the variation with depth of the hydraulic conductivity of saturated soil monoliths
  163. Measurement of spore-carrying splash droplets using photographic film and an image-analyzing computer
  164. Measurement and simulation of the movement and degradation of atrazine and metribuzin in a fallow soil
  165. Measured and simulated behavior of fluometuron, aldoxycarb and chloride-ion in a fallow structured soil
  166. Leaf protein as a food source
  167. Laboratory tests of 8-quinolinol as an additive to volatile fatty-acids for preserving hay and other feedstuffs
  168. Laboratory estimation of toxicity of pyrethroid insecticides to honeybees - relevance to hazard in the field
  169. Irrigation - when and how much to apply
  170. Invitro synthesis of oat globulin
  171. Interactions between globodera-pallida, globodera-rostochiensis and verticillium-dahliae on 4 potato cultivars
  172. Insecticidal activity of the pyrethrins and related-compounds .12. Alpha-substituted-3-phenoxybenzyl esters
  173. Inhibition of stomatal opening by cyclic crown polyethers in commelina-communis, and a correlation with lipophilicity and bonding
  174. Inhibition of pea leaf glutamine-synthetase by methionine sulfoximine, phosphinothricin and other glutamate analogs
  175. Influence of soils and fertility on activity and survival of vesicular-arbuscular mycorrhizal fungi
  176. The influence of predators on population development and dispersal of apterous myzus-persicae in sugar-beet in the United-Kingdom
  177. Infection and root-nodule development in stylosanthes species by rhizobium
  178. Increased sensitivity of detection of plant-viruses obtained by using a fluorogenic substrate in enzyme-linked immunosorbent-assay
  179. Improved preparation of (e)-beta-farnesene and its activity with economically important aphids
  180. The importance of nematophagous fungi in the management of cyst nematode populations
  181. Immunochemical studies on barley seed storage proteins
  182. Identification of rhizobium strains on antibiotic concentration gradients
  183. Identification of meloidogyne species
  184. The identification of hymenopterous parasitoids attacking cereal aphids in Britain
  185. Hirschmanniella sp the primary causal agent of a major disease of taro (colocasia-esculenta) a staple food crop in the south-pacific
  186. Hexatylus head skeleton - different but not so different
  187. Helicotylenchus-vulgaris and its association with damage to sugar-beet
  188. A guide to the neuroanatomy of locust subesophageal and thoracic ganglia
  189. Growth and water-use of arran banner potato plants infested with globodera-pallida
  190. The genetic determination of host range in the rhizobiaceae
  191. Genetic and biochemical-studies of resistance to permethrin in a pyrethroid-resistant strain of the housefly (musca-domestica l)
  192. Genes for the storage proteins of barley
  193. Further-studies on root symptoms in coconut palms affected by lethal yellowing disease in Jamaica
  194. Fourier-series and response curves
  195. Formulations of soil-applied fungicides for controlling take-all (gaeumannomyces-graminis var tritici) in experiments with pot-grown wheat
  196. Food - the best medicine
  197. Fitting split-lines to ecological data
  198. Field trials of foliar sprays of 3,5-dichlorophenoxyacetic acid (3,5-d) against common scab on potatoes
  199. Field desorption and chemical ionization mass-spectra of crown and macrobicyclic polyether complexes of potassium
  200. Factors affecting the spread of vesicular mycorrhizal fungi in soil .I. Root density
  201. Factorial-designs - raktoe,bl, hedayat,a, federer,wt
  202. Experiments on soil drenching with fungicides against take-all in wheat
  203. Erythro-6-Acetoxy-5-hexadecanolide, the major component of a mosquito oviposition attractant pheromone
  204. Electric charge and the deposition of spores of barley mildew erysiphe-graminis
  205. Eggshell calcium and the hatching of globodera-rostochiensis
  206. Eggshell calcium and the hatching of globodera-rostochiensis
  207. The effects of weight at 1st insemination on the subsequent performance of friesian dairy heifers
  208. The effects of tridemorph on barley powdery mildew - its mode of action and cross sensitivity relationships
  209. The effects of the repellents dodecanoic acid and polygodial on the acquisition of non-persistent, semi-persistent and persistent plant-viruses by the aphid myzus-persicae
  210. Effects of the pyrethroid deltamethrin on the acquisition and inoculation of viruses by myzus-persicae
  211. The effects of pesticide application on upland permanent pasture
  212. The effects of light illuminance and wavelength on the growth of broiler-chickens
  213. Effects of husbandry treatments on nitrogen concentration of grain and related yields in winter-wheat experiments made in southeast England
  214. The effects of dazomet and nitrogen-fertilizer on successive crops of maize (zea-mays-l) grown for either grain or forage
  215. The effects of concentration and valency of cr around the root in nutrient solutions and in soil cr uptake and toxicity
  216. Effects of aerial pollutants on the growth and yield of spring barley
  217. The effect of the physical-properties of 2 tropical cotton soils on the permanent wilting point and relative-humidity in relation to the survival and distribution of meloidogyne-acronea
  218. The effect of root-ectoparasitic nematodes on grass establishment and productivity
  219. The effect of root ectoparasitic nematodes upon grass establishment
  220. Effect of progesterone treatment on the calving-to-conception interval of friesian dairy-cows
  221. The effect of ph upon the copper and cupric ion concentrations in soil solutions
  222. Effect of paratrichodorus anemones and other plant-parasitic nematodes on root-growth of spring wheat
  223. The effect of nitrogen nutrition on the lysine content and protein-composition of barley-seeds
  224. The effect of fungicides on field populations of aphis-fabae and on the infection of the aphids by entomophthoraceae
  225. The effect of direct drilling and minimal cultivation on earthworm populations
  226. Effect of anthelmintic treatment on the milk-yield of dairy-cows in England, Scotland and Wales
  227. The effect of three herbicides on the number of spores of rhynchosporium-secalis on barley stubble and volunteer plants
  228. Distribution of the ppp(A2′p)nA-binding protein and interferon-related enzymes in animals, plants, and lower organisms
  229. Distribution between parts of the main shoot and the tillers of photosynthate produced before and after anthesis in the top 3 leaves of main shoots of hobbit and maris huntsman winter-wheat
  230. The diminished incidence of Acarapis woodi (Rennie) (Acari : Tarsonemidae) in honey bees, Apis mellifera L (Hymenoptera : Apidae), in Britain
  231. Differential protein accumulation during barley-grain development
  232. The development of nad(p)h-dependent and ferredoxin-dependent glutamate synthase in greening barley and pea leaves
  233. The development of endomycorrhizal root systems .4. The mathematical-analysis of effects of phosphorus on the spread of vesicular arbuscular mycorrhizal infection in root systems
  234. The development of endomycorrhizal root systems .3. The mathematical representation of the spread of vesicular arbuscular mycorrhizal infection in root systems
  235. Detection of corn stunt spiroplasma invivo by elisa using antisera to extracts from infected corn plants (zea-mays)
  236. Design of an experiment to validate and improve the agricultural-development advisory service hen model of egg-production
  237. Degradation of permethrin in soils
  238. The crystal-structures of complexes between dimethylthallium picrate and 2 isomers of dicyclohexano-18-crown-6
  239. Crystal-structures of complexes between alkali-metal salts and cyclic polyethers .12. The complex between sodium-bromide and 2,3-dimethoxybenzo-15-crown-5 bromo(2,3-dimethoxy-6,7,9,10,12,13,15,16-octahydrobenzo 1,4,7,10,13 pen ta-oxacyclopentadecene)sodium
  240. Crystallographic study of the binding of a trifluoroacetyl dipeptide anilide inhibitor with elastase
  241. Critical potassium potentials for crops .2. Potentials for wheat, maize, peas, beans and sugar-beet in their early growth on a sandy loam
  242. Critical potassium potentials for crops .1. The effect of soil type on the growth of ryegrass and creeping red fescue
  243. Correction for seed‐phosphorus effects in L‐value determinations
  244. Coordination of alkali-metals by open-chain polyethers in transition-metal complexes .1. X-ray crystal and molecular-structure of tetrakis 1-ortho-carboxymethoxyphenoxy)-2-(ortho-hydroxyphenoxy)ethanato -(1-) dipotassiumcobalt(ii), a trinuclear potassium-cobalt-potassium complex
  245. The conversion of 3-indolylmethylglucosinolate to 3-indolylacetonitrile by myrosinase, and its relevance to the clubroot disease of the cruciferae
  246. Control of sugar-beet aphids and virus yellows
  247. The construction by computer of a diagnostic key to the genera of yeasts and other such groups of taxa
  248. Computer-graphics in the reconstruction of serial sections
  249. Computer mapping of records of beet cyst nematode (heterodera-schachtii), 1928-77
  250. Compounds modifying the activity of 2 sex attractants for males of the pea moth, cydia-nigricana-(f)
  251. Composition and development of some soils on glauconitic cretaceous (upper greensand) rocks in southern England
  252. Comparison of the response of different solanum-vernei hybrid clones and solanum-andigena cultivar, maris piper to globodera-rostochiensis and globodera-pallida
  253. A comparison of the protein and amino-acid-composition of old and recent barley-grain
  254. A comparison of the extractabilities of zn, cu, ni and cr from sewage sludges prepared by treating raw sewage with the metal-salts before or after anaerobic-digestion
  255. Comparison of the effects of salicylic-acid and ethephon with virus-induced hypersensitivity and acquired-resistance in tobacco
  256. A comparison of 2 rain-activated switches used with samplers for spores dispersed by rain
  257. A comparative-study of 3 methods of water removal prior to resin impregnation of 2 soils
  258. Comparative synoptic dynamics .1. Relationships between interspecific and intraspecific spatial and temporal variance mean population parameters
  259. Columns of water-molecules and chloride-ions in hydrophobic channels in crystals of a potassium complex
  260. A class of blue quinone-protein coupling products - the allagochromes
  261. Chemical techniques for control of stem canker and black scurf (rhizoctonia-solani) disease of potatoes
  262. Changes in the body-composition of cattle exhibiting compensatory growth
  263. Changes in membrane phospholipids, identified by arrhenius plots of acetylcholinesterase and associated with pyrethroid resistance (kdr) in houseflies (musca-domestica)
  264. A carboxylesterase with broad substrate-specificity causes organo-phosphorus, carbamate and pyrethroid resistance in peach-potato aphids (myzus-persicae)
  265. Calculations of ponded water drainage for flow regions of various geometries to demonstrate effect of disturbed soil-zone shape on drain performance
  266. Buildup and subsequent decline of residues of quintozene and hexachlorobenzene in lettuce in sequential crops
  267. Breakdown of potato virus-x resistance gene-nx - selection of a group 4 strain from strain group 3
  268. The biochemical basis of resistance to organo-phosphorus insecticides in the sheep blowfly, lucilia-cuprina
  269. Biochemical and genetic-analysis of 3 proline accumulating barley mutants
  270. Bias in pressure chamber measurements of leaf water potential
  271. Behavior of permethrin as a seed treatment against larvae of the wheat bulb fly (delia-coarctata-fall)
  272. Behaviour of alatae of myzus-persicae (sulzer) (hemiptera, aphididae) on chemically treated surfaces after tethered flight
  273. Beet cyst-nematode
  274. Bacteriostatic action of nitrification inhibitors
  275. Attractiveness of (Z)-11-eicosen-1-ol to foraging honeybees
  276. Assessment of methods for estimating the numbers of aphids (hemiptera, aphididae) in cereals
  277. An assessment of a method based on intrinsic antibiotic-resistance for identifying rhizobium strains
  278. Aspects of the hatching mechanism of heterodera-goettingiana
  279. Application to wheat and barley of 2 leaf photosynthesis models for c-3 plants
  280. Apparatus for applying 15N-labelled fertilizer uniformly to field micro-plots
  281. Aphid alarm pheromone derivatives affecting settling and transmission of plant-viruses
  282. Analyzing one-step outflow experiments to calculate soil-water diffusivities, using gardner equation
  283. An analysis of factors affecting catches of insects in light-traps
  284. Analysis of covariance and standardization as instances of prediction
  285. Agriculture and food
  286. Affinity of rubp carboxylases for carbon-dioxide and inhibition of the enzymes by oxygen
  287. Adenosine triphosphate measurement in soil: an improved method
  288. Adenosine-triphosphate (atp) and microbial biomass in soil - effects of storage at different temperatures and at different moisture levels
  289. Two new species of malbranchea
  290. 2 genes for threonine accumulation in barley-seeds
  291. The effects of nucleotype and genotype upon pollen grain development in Hyacinth and Scilla
  292. Chromosome variation in protoplast-derived potato plants
  293. Cytogenetics Of Lolium perenne. Part 1: Chiasma frequency variation in inbred lines
  294. Measurement of microbial biomass phosphorus in soil
  295. Relationships between lipophilicity and root uptake and translocation of non-ionized chemicals by barley
  296. The role of natural enemies in cereal aphid population dynamics
  297. The role of ammonia assimilatory enzymes during nitrogen fixation in root nodules
  298. Threonine accumulation in the seeds of a barley mutant with an altered aspartate kinase
  299. Multiple forms of glutamine synthetase in the plant fraction of Phaseolus root nodules
  300. The effect of barley yellow dwarf virus on honeydew production by the cereal aphids Sitobion avenae and Metopolophium dirhodum
  301. Simulating diffusion within soil aggregates: a simple model for cubic and other regularly shaped aggregates
  302. Experimental and theoretical aspects of solute diffusion in spherical and nonspherical aggregates
  303. The determination of ionic diffusion coefficients in field soils. II. Diffusion of bromide ions in undisturbed soil cores.
  304. The permanent grassland division at North Wyke
  305. The effects of integration of conservation and grazing on the composition and productivity of grass-clover swards
  306. The effect of paraformaldehyde on the fermentation quality and feeding value of ryegrass and lucerne silages
  307. Improving forage quality by processing
  308. Frequency and severity of defoliation of grass and clover by sheep at different stocking rates
  309. Forage protein conservation and utilization: concluding remarks